FIELD: crude oil treatment. SUBSTANCE: invention relates to reusing oil slimes formed at oil, gas, and water collection and treatment enterprises, in particular oil slimes accumulated in oil traps, earthen containers, tanks, etc. Before filtration and settling operations, oil slime is dispersed with low-boiling paraffin hydrocarbon solvent, for instance n-hexane, long fraction of light hydrocarbons, gas condensate, and others taken in weight proportions assuring, in settling operation, flocculation of asphaltenes and settling thereof together with suspended particles, salt microcrystals, and water globules in the form of flake agglomerates. The thus settled oil solution, meeting requirements for high-quality commercial petroleum, is pumped off into commercial petroleum storage tanks. Remaining flake agglomerate sediment is mixed with 50% toluene solution of nonionic surfactant (e.g. OP-10 or neonol) at 1:1 volume ratio and resulting mixture is used for increasing oil formation recovery, in particular for preparing aqueousemulsion disperse systems utilized for insulation of water inflow in production wells or for leveling intake capacity profile in injectors. EFFECT: increased economical efficiency of crude oil treatment. 2 cl, 1 dwg, 3 tbl _
Authors
Dates
2001-08-27—Published
2000-09-18—Filed